Fostex TH-900mk2 Premium 1.5 Tesla Stereo Headphones Fostex TH-900mk2 Premium 1.5 Tesla Stereo Headphones - 3m 1/4" Unbalanced Stereo Phone Cable - Headphone Stand - Carrying Bag - Fostex 1 Year Limited Warranty New detachable connectors for cable replacement. Optional balanced cable model, ET-H3.0N7BL is also available for balanced connection Unique designed Neodymium magnetic circuit adopting the magnetic repulsion system with 1.5 tesla (15,000 gauss) magnetic flux density to achieve wider dynamic range The detachable unbalanced cable is made of 7N grade (99.99999%) OFC and highly durable duralumin plug case Proprietary "Biodyna" diaphragm for fine and high resolution sound reproduction